US20160228891A1 - Power sprayer - Google Patents
Power sprayer Download PDFInfo
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- US20160228891A1 US20160228891A1 US15/133,946 US201615133946A US2016228891A1 US 20160228891 A1 US20160228891 A1 US 20160228891A1 US 201615133946 A US201615133946 A US 201615133946A US 2016228891 A1 US2016228891 A1 US 2016228891A1
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- Prior art keywords
- water
- outlet
- spray head
- nozzle
- inlet
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3463—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels extending outwardly, e.g. radially from the inside to the outside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/10—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in the form of a fine jet, e.g. for use in wind-screen washers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3402—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to avoid or to reduce turbulencies, e.g. comprising fluid flow straightening means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
Definitions
- the present invention relates to a water delivery device and, more particularly, to a water delivery device for use with a sink and configured to generate a continuous sheet-like water shield around a stream of water.
- a spray head includes a body, and a cartridge assembly received within the body.
- the cartridge assembly includes an inlet, a first outlet in fluid communication with the inlet and configured to produce a water stream, and a second outlet in fluid communication with the inlet and configured to produce a continuous shield of water extending outwardly in a sheet-like layer around the water stream, the water stream having a substantially laminar flow.
- a spray head includes a body having a fluid port, and a mount removably received within the body.
- the spray head further includes a flow straightening member operably coupled to the mount and in fluid communication with the fluid port.
- the flow straightening member is configured to assist in removing turbulence from the water.
- a nozzle is operably coupled to the straightening member and includes an outlet orifice configured to produce a center water stream.
- a whirl member is operably coupled to the mount and is configured to impart rotational movement to the water, thereby producing a continuous shield of water extending around the center water stream.
- a method of generating a water pattern includes the steps of producing a center water stream having a substantially laminar flow from a first outlet, and producing an outer continuous shield of water extending outwardly in a sheet-like layer around the center water stream.
- a method of generating a water pattern with a water delivery device includes the steps of dividing a supply of water provided to the water delivery device into at least a first portion and a second portion and supplying from the water delivery device a stream of water based on the first portion and a continuous shield of water based on the second portion.
- the stream of water has a substantially laminar flow and the continuous shield of water surrounds the stream of water.
- a water deliver system for connection to at least one source of water and for mounting to a sink deck.
- the water delivery system comprises at least one valve adapted to be in communication with the at least one source of water and an output device coupled to the sink deck.
- the output device includes an internal waterway and a spray head.
- the internal waterway is in fluid communication with the valve and with the spray head.
- the spray head includes a first outlet producing a stream of water and a second outlet producing a continuous shield of water surrounding the stream of water.
- FIG. 1 is a front perspective view of an illustrative embodiment spray head of the present disclosure
- FIG. 2 is a rear perspective view of the spray head of FIG. 1 ;
- FIG. 3 is an exploded perspective view of the spray head of FIG. 1 ;
- FIG. 4 is an exploded perspective view of the cartridge assembly and outlet member of the spray head of FIG. 1 ;
- FIG. 5 is a cross-sectional view taken along line 5 - 5 of FIG. 1 ;
- FIG. 6 is a top plan view of the whirl member of the cartridge assembly of FIG. 4 ;
- FIG. 7 is a cross-sectional view of the spray head of FIG. 1 ;
- FIG. 8 is a detailed cross-sectional view of the cartridge assembly of FIG. 4 ;
- FIG. 9 is an end perspective view of the spray head of FIG. 1 , with a partial cut-away thereof;
- FIG. 10 is an exploded perspective view of a further illustrative embodiment cartridge assembly of the present disclosure.
- FIG. 11 is a cross-sectional view of the cartridge assembly of FIG. 10 ;
- FIG. 12 is a perspective view with a cut-away thereof of the cartridge assembly of FIG. 10 ;
- FIG. 13A is a cross-sectional view of an illustrative flow straightener
- FIG. 13B is a perspective view with a cutaway thereof of the flow straightener of FIG. 13A ;
- FIG. 14 is a perspective view of a further illustrative embodiment cartridge assembly
- FIG. 15 is a cross-sectional view of the cartridge assembly of FIG. 14 ;
- FIG. 16 is an exploded perspective view of the cartridge assembly of FIG. 14 ;
- FIG. 17 is a representative view of a further embodiment nozzle
- FIG. 18 is a side, schematic view showing an illustrative velocity circle formed by a substantially laminar stream
- FIG. 19 is a top, schematic view showing an illustrative velocity circle formed by a substantially laminar stream
- FIG. 20 is an exploded perspective view of a further embodiment cartridge assembly
- FIG. 21 is a cross-sectional view of the cartridge assembly of FIG. 20 ;
- FIG. 22 is a perspective view of an inlet member of the cartridge assembly of FIG. 20 ;
- FIG. 23 is a diagrammatic view of an exemplary water delivery system
- FIG. 24 is a perspective view of an illustrative embodiment spray head including a further illustrative embodiment cartridge assembly
- FIG. 25 is a cross-sectional view taken along line 25 - 25 of FIG. 24 ;
- FIG. 26 is a partially exploded perspective view, with a partial cut-away, of the spray head of FIG. 24 ;
- FIG. 27 is a detailed cross-sectional view of FIG. 25 ;
- FIG. 28 is an exploded perspective view of the cartridge assembly of FIG. 24 , with the holder shown in partial cross-section;
- FIG. 29 is a cross-sectional view taken along line 29 - 29 of FIG. 24 ;
- FIG. 30 is a cross-sectional view taken along line 30 - 30 of FIG. 24 ;
- FIG. 31 is a cross-sectional view of a further illustrative embodiment cartridge assembly.
- FIG. 32 is a cross-sectional view of a further illustrative embodiment cartridge assembly.
- a spray head 10 according to an illustrative embodiment of the present invention is shown as including a valve body 12 including an inlet fluid port 14 having a plurality of external threads 16 for coupling with a conventional water supply line (not shown).
- a valve body 12 includes first and second bores 18 and 20 configured to receive conventional valve control members (not shown) for controlling the flow of water from the inlet fluid port 14 to an outlet member 22 .
- valve control members are configured to direct water from the inlet fluid port 14 to different fluid passageways formed within the valve body 12 , which are in fluid communication with a cartridge assembly 24 received within a first opening 26 of the outlet member 22 , and aerator nozzle (not shown) received within a second opening 28 of the outlet plate 22 , and a plurality of circumferentially disposed openings 30 positioned around the first and second openings 26 and 28 .
- the cartridge assembly 24 includes a holder 32 , a whirl member 34 , a back reflector 36 , a flow straightener 38 and a flow nozzle 40 .
- the holder 32 includes an inner first end having a plurality of external threads 42 to be received within the opening 26 of the valve body 12 and to threadably engage a plurality of internal threads 44 formed therein ( FIG. 8 ).
- An outer end of the holder 32 includes a plurality of internal threads 46 which threadably engage a plurality of external threads 48 formed on a inner end of the flow straightener 38 ( FIG. 8 ).
- the flow straightener 38 includes a plurality of parallel, longitudinally aligned bores 50 configured to receive fluid from an inlet 52 .
- the bores 50 are configured to assist in removing turbulence from water flowing therethrough, and provide a more linear flow to the water.
- Flow nozzle 40 includes an inner end having a plurality of internal threads 54 which threadably engage a plurality of internal threads 56 formed within the outer end of the flow straightener 38 .
- Flow nozzle 40 includes a cylindrical outer wall 58 and a substantially planar end wall 60 .
- An outlet orifice 62 is formed within the end wall 60 such that water passing therethrough forms a center water stream 63 ( FIG. 7 ).
- the orifice 62 includes sharp entry corners 64 (see FIG. 9 ) to assist in providing a substantially laminar flow.
- the diameter of the orifice 62 is illustratively at least as great as the thickness of the adjacent planar end wall 60 to further assist in providing a substantially laminar flow to the center water stream.
- a counter bore 66 is formed in the outer surface of the end wall 60 and a diametrically disposed slot 68 is likewise formed in the outer surface.
- the slot 68 is configured to receive a tool such as a screw driver to assist in inserting and securing the cartridge assembly 24 within the valve body 12 .
- the counter bore 66 provides a recess to prevent potential damaging contact between the tool and the outlet orifice 62 .
- a plurality of passageways 70 are formed within the holder 32 and are in fluid communication with the whirl member 34 .
- the whirl member 34 includes an annular body 72 defining a central opening 74 and a plurality of outwardly extending slots 76 which are configured to impart rotational movement to water passing through the annular passageways 70 , through the opening 74 intermediate the body 72 and the flow straightener 38 , and out through the slot 76 . Once the rotational movement is imparted to the water, it passes outwardly due to centrifugal force and contacts an outer cylindrical wall 78 of the back reflector 36 .
- An end wall 79 of the back reflector 36 directs water in a rearward direction through a second annular passageway 80 .
- An end wall 81 formed by the holder and the valve body then redirects the water back in a forward direction and toward a second outlet 82 .
- the rotating water supplied from the whirl member 34 enters a serpentine passageway that reverses its direction twice as it travels toward the second outlet 82 .
- This redirection of the water in rearward and forward directions assists in making the layer of water substantially uniform.
- centrifugal force causes it to define a substantially continuous shield of water 84 having a sheet-like appearance ( FIG. 7 ).
- the surfaces contacted by the rotating water should be substantially smooth.
- the shield 84 will typically have a conical or bulb-like shape.
- the valve cartridge assembly 124 includes a base 126 which threadably receives a shroud 128 . Similarly, a shroud shaper 130 threadably receives the shroud 128 .
- a nozzle mount 132 is operably coupled to the base 126 through a conventional fastener, such as a screw 134 .
- a flow straightener 136 is concentrically received within the nozzle mount 132 . The flow straightener 136 is secured in position by means of a nozzle body 138 which is threadably received within an outer end of the nozzle mount 132 .
- a nozzle 140 is threadably received within an outer end of the nozzle body 138 .
- the nozzle mount 132 and the flow straightener 136 cooperate to assist in removing turbulence from water flowing therethrough. More particularly, the flow straightener 136 includes a plurality of parallel bores 142 (see FIG. 11 ) configured to cause a substantially linear flow of water therethrough.
- the nozzle 140 is of a design similar to nozzle 40 detailed herein.
- an alternative embodiment flow straightener 136 ′ includes an inwardly facing conical surface 143 a and an outwardly facing conical surface 143 b.
- the flow straightener 136 ′ may be substituted for flow straightener 136 to facilitate the removal of turbulence from water passing therethrough.
- a whirl member 144 is retained within the base 126 by the nozzle mount 132 .
- the whirl member 144 may be of a design similar to whirl member 34 as detailed herein.
- the whirl member 144 is configured to impart rotational movement to water passing therethrough, wherein the water then extends into an annular passageway 146 and into the shroud shaper 130 . Because the water adheres to the inner surface of the outer wall of the shroud shaper 130 it generates a conical or bulb-like continuous shield of water as it exits through outlet 150 .
- the outlet orifice 62 of the nozzle 140 generates a center stream of water disposed within the shield of water.
- FIGS. 14-16 show another illustrative embodiment cartridge assembly 224 of the present invention.
- Cartridge assembly 224 includes a base 226 having an inlet 228 .
- Inlet 228 is illustrated as a separate component coupled to base 226 .
- inlet 228 may be integrally formed as apart of base 226 .
- a nozzle 230 is threadably received within the base 226 and includes a center first outlet 232 and an annular second outlet 234 disposed concentrically around the first outlet 232 .
- a conical member 236 is supported concentrically around the center first outlet and provides a Coanda effect surface 238 . More particularly, water passing through the inlet 228 to the center first outlet 232 generates a water stream which is illustrated as centrally located.
- FIG. 17 illustrates an alternative embodiment for producing a substantially laminar flow through the outlet orifice 62 of a nozzle 40 ′.
- the end wall 60 ′ instead of a substantially planar end wall 60 , the end wall 60 ′ includes a conical surface directing water to the outlet orifice 62 .
- the substantially laminar flow of the center stream 63 reduces splashing or misting in response to water contacting a surface 280 .
- the water shield 84 protects against splash, mist and dislodged debris when using a power spray to clean surfaces, such as dishes, sink, etc. It is also possible to replace the continuous water shield with an aerated shield.
- the various illustrated embodiments provide a central flow of water having a generally laminar stream, such as stream 63 in FIG. 7 , and a continuous shield of water, such as shield 83 in FIG. 7 , surrounding the central flow of water.
- the continuous shield of water may also surround a flow of water, central or offset, having a substantially non-laminar stream.
- substantially laminar stream 63 is surrounded by shield 84 , which essentially acts as a splash barrier.
- surface 280 such as a surface of a dish
- fluid follows surface 280 in a direction radially outwardly from the center axis of stream 63 .
- the substantially laminar characteristics of stream 63 and the Coanda effect causes the fluid to generate a velocity zone 282 , substantially circular, which extends outwardly to mix with fluid from shield 84 impacting surface 280 .
- substantially laminar stream 63 When substantially laminar stream 63 contacts surface 280 , it creates a substantially circular zone 282 (illustratively about 1 inch in diameter) that is of a high pressure and flows parallel to surface 280 . Water flow within zone 282 thus tends to strip particles from surface 280 to facilitate cleaning, similar to a mechanical scraping. Further, fluid from stream 63 and from shield 84 combine to form a turbulent flow which also facilitates cleaning of surface 280 .
- Cartridge assembly 316 may be received in valve body 12 and includes a holder 318 , an inlet member 320 , a flow straightener 322 , and an outlet member 324 . As explained herein outlet member 324 provides a substantially laminar flow of water.
- Surface 304 of holder 318 cooperate with valve body 12 to couple cartridge assembly 316 to valve body 12 .
- a coupler such as a fastener, is received in opening 308 to couple holder 318 to valve body 12 .
- surface 304 is threaded and is threadably engaged with valve body 12 to permit removal of valve cartridge 316 from valve body 12 .
- a seal (not shown) is carried in a recess 302 of holder to provide a fluid tight seal between valve body 12 and a periphery of holder 318 .
- Holder 318 includes an inlet 306 which is in fluid communication with the internal fluid passageways of valve body 12 .
- inlet 306 includes three elongated orifices 310 A-C.
- Inlet 306 may have fewer or more orifices.
- orifices 310 A-C ( 310 A illustrated) are generally aligned with passageways 330 A-C formed by the cooperation of inlet member 320 and flow straightener 322 .
- Orifices 310 A-C are in fluid communication with a region 312 in holder 318 between holder 318 and inlet member 320 .
- Inlet member 320 is coupled to holder 318 .
- surface 332 of inlet member 320 and surface 334 of holder 318 are each threaded.
- surfaces 332 and 334 are sized such that holder 318 and inlet member 320 may be sonically welded together.
- An angled surface 336 of inlet member 320 and an angled surface 338 of holder 318 cooperate to assist in sealing the periphery of inlet member 320 relative to holder 318 .
- Surfaces 348 (illustratively three surfaces) of flow straightener 322 and surfaces 348 (illustratively three surfaces) of inlet member 320 are sized such that flow straightener 322 may be sonically welded to inlet member 320 .
- flow straightener 322 is coupled to inlet member 320 by other suitable means, such as threads.
- inlet member 320 includes a plurality of slot 340 are in fluid communication with passageways 330 and which impart a rotational movement to the water to assist in the formation of the continuous shield of water, as explained below.
- the central portion of inlet member 320 receives a body portion 321 of flow straightener 322 .
- a lower portion 342 of inlet member 320 which contains slots 340 is received within an opening 344 of flow straightener 322 between body portion 321 and a deflector portion 374 of flow straightener 322 .
- Outlet member 324 includes a recess 350 which is in fluid communication with fluid passages 352 in flow straightener 322 .
- Recess 350 terminates in an outlet orifice 354 .
- Outlet member 324 includes a raised portion 356 which cooperates with a surface 358 of flow straightener 322 to permit outlet member 324 to be sonically welded to flow straightener 322 .
- flow straightener 322 is coupled to outlet member 324 by other suitable means, such as threads.
- valve cartridge 316 In operation, water enters valve cartridge 316 through orifices 310 A-C. As explained herein, a first portion of the water entering valve cartridge 316 exits as a stream of water, similar to stream 63 , and a second portion of the water entering valve cartridge 316 exits as a continuous shield of water, similar to shield 84 .
- Body portion 321 of flow straightener 322 includes a plurality of passageways 352 .
- Illustratively passageways 352 are a plurality of parallel, longitudinally aligned bores (see 352 A in FIG. 21 ) which are configured to assist in removing turbulence from fluid flowing there through, and provide a more linear flow to the fluid.
- Water passing through passageways 352 is communicated to an internal waterway 360 in flow straightener 322 and onto recess 350 in outlet member 324 .
- Recess 350 includes a cylindrical outer wall 362 and a tapered or conical inner wall 364 .
- Conical inner wall 364 abuts a substantially planar end wall 366 defining outlet orifice 354 , such that water passing there through forms a center water stream similar to stream 63 .
- Orifice 354 includes sharp entry corners 368 to assist in providing a substantially laminar flow to the outlet stream.
- the outlet stream has a substantially laminar flow.
- a continuous shield of water is formed by water that enters passageways 330 A-C formed by inlet member 320 and flow straightener 322 .
- Passageways 330 A-C are in fluid communication with slots 340 positioned at a lower end of inlet member 320 .
- Slots 340 and a lower surface 370 of flow straightener 322 change the direction of flow of the water and impart rotational movement to the water passing there through. Once the rotational movement is imparted to the water, it moves outwardly to a side wall 372 of deflector member 374 of flow straightener 322 and is directed backwards in direction 376 .
- the water continues generally in direction 376 until it is redirected forward again in direction 378 by surface 380 of inlet member 320 .
- the water travels generally in direction 378 toward a shield outlet 382 .
- inner surface 384 illustratively includes a flared or angled portion extending toward shield outlet 382 .
- inner surface 384 contacted by the rotating fluid should be substantially smooth.
- the flared portion of surface 384 assists in shaping the appearance of the continuous sheet of water.
- the flared portion causes the appearance of the continuous sheet of water to be more conical and less spherical.
- cartridge assembly 316 Additional details regarding cartridge assembly 316 are provided in U.S. Provisional Patent Application Ser. No. 60/771,192, filed Feb. 6, 2006, the disclosure of which has been expressly incorporated by reference herein.
- the spray heads and valve cartridges discussed herein may be used as apart of a water delivery system 400 for use with a sink 402 having a drain 401 or other device, residential or commercial, associated with a drain.
- Sink 402 is shown being coupled to a countertop 404 .
- the countertop 404 and a top portion of the sink 402 are collectively referred to as the sink deck.
- Water delivery system 400 is coupled to a source of hot water 406 and a source of cold water 408 . Water from the source of hot water 406 and source of cold water 408 are provided to one or more valves 410 which may be adjusted to regulate the flow of water there through.
- the source of hot water 406 and the source of cold water 408 are both in fluid communication with a single mixing valve which regulates the flow rate of water from each source 406 , 408 which is to be provided to an output device 412 , if any depending on the water characteristics desired. For instance, only hot water may be desired so the valve would only pass water from the source of hot water 406 .
- the source of hot water 406 and the source of cold water 408 are each in fluid communication with a respective valve; each valve regulating the flow of water to be provided to the output device 412 from the respective source of water in fluid communication with the valve.
- Valve 410 may be positioned above the sink deck or below the sink deck.
- valve 410 The control of valve 410 is through one or more input devices 414 .
- exemplary input devices 414 include both mechanical input devices, such as handles, and electronic input devices, such as a touch sensor or an infrared sensor, which provide an indication to a controller of the water characteristics desired.
- the controller adjusts valve 410 through a motor coupled to valve.
- Exemplary output devices 412 include a spout having a spray head coupled thereto.
- the spout may be rigid or may have a flexible portion.
- spray head is a swivel head attached to the end of a spout base member.
- spray head is a pull out wand which is attached to a spout base member. The pull out wand having a first position generally coupled to spout base member and a second position wherein the wand is spaced apart from the spout base member and connected thereto through a waterway connecting the two.
- Another exemplary output device is a side spray. Exemplary side sprays are disclosed in U.S. Provisional Application Ser. No. 60/771,192, filed Feb.
- spray head is incorporated into a side spray which may be coupled to the sink deck and is in fluid communication with valve 410 .
- side spray is in fluid communication with valve 410 independent of a spout.
- spray head may be used with any type of water delivery device which is coupled to a sink deck and used in combination with a sink 402 .
- water delivery system 400 is associated with a bathtub, a shower, or other receptacle having an associated drain, such as drain 401 associated with sink 402 in FIG. 23 .
- the spray heads and/or valve cartridges disclosed herein may be used to provide a continuous shield surrounding a stream of water as part of a tub filler, a showerhead, and/or a body spray.
- using the continuous shield and stream combination may reduce the amount of steam produced in a shower setting.
- a portion of air may be trapped between the stream and the continuous shield.
- steam generated from the stream is generally trapped inside the shield thereby limiting the humidity in the bathroom.
- the spray heads and/or valve cartridges disclosed herein may be configured to include multiple streams of water surrounded by the continuous stream. Each stream may have a substantially laminar flow or a non-laminar flow. In one embodiment, the spray heads and/or valve cartridges disclosed herein may be configured to include multiple continuous shields of water. In one embodiment, the spray heads and/or valve cartridges disclosed herein may be configured to include one or more streams of the water, each stream having one of a substantially laminar flow or a non-laminar flow, and one or more continuous shields of water surrounding the one or more streams of water.
- the inlet to the water passage to generate the stream of water and the inlet to the water passage to generate the shield of water are independent of each other, such that water may be presented to only the water passage to generate the stream of water, to only the water passage to generate the shield of water, or to both the water passage to generate the shield of water and the water passage to generate the stream of water.
- the water delivery system 400 may include separate water conduits from valve 410 connecting to the water passage to generate the stream of water and the water passage to generate the shield of water.
- a user may select with input device 414 to generate a stream of water only, to generate a shield of water only, or to generate a combination of a stream of water and a continuous shield of water.
- the water shield only mode may be used for a rinsing application.
- the continuous shield of water has a generally football shaped appearance.
- the shape of the continuous shield of water is influenced by the pressure of the water. At standard pressures for residential applications, the shape of the continuous shield is generally a half of a football or generally conical. At lower pressures the shape of the continuous shield is generally football shaped.
- the pressure related to the water in the continuous shield may be chosen to select an aesthetically pleasing appearance. In one example, the pressure is chosen such that the appearance of the water shield provides a bubble around a stream of water.
- the shape of the continuous shield may also be influenced by the temperature of the water.
- an illustrative embodiment spray head 510 is shown as including a further illustrative spray cartridge assembly 524 .
- many components are similar to those identified above in connection with other illustrative embodiment spray heads. As such, similar components will be identified with like reference numbers.
- the spray head 510 includes a valve body 512 supporting a fluid inlet port 514 for coupling to a conventional water supply line (not shown).
- the valve body 512 may be received within an outer shell 516 and may also support a user interface 518 to control water flow through the water inlet port 514 to a plurality of different water outlet openings 526 , 528 , 530 .
- the user interface 518 may include a push button 532 configured to cause water to flow from the inlet port 514 through the valve cartridge assembly 524 received within the outlet opening 526 , in a manner further detailed herein.
- the illustrative user interface 518 may further include a toggle switch 534 configured to cause water to flow from the inlet port 514 alternatively between spray nozzles 536 received within the outlet openings 528 , and a conventional aerator 538 received within the outlet opening 530 .
- illustrative valve cartridge assembly 524 is supported by the body 512 and includes a holder 540 , an inlet member or retainer 542 , a flow straightener or nozzle 544 , an outlet member or housing 546 and an o-ring 548 .
- the nozzle 544 is received within the outlet housing 546 and retained therein by the inlet retainer 542 . More particularly, the outlet housing 546 couples with the inlet retainer 542 which, in turn, couples with the holder 540 .
- the holder 540 illustratively includes a body 550 defining outlet openings 526 , 528 and 530 supporting valve cartridge assembly 524 , spray nozzles 536 and aerator 538 , respectively.
- Retaining tabs 552 are illustratively supported by the body 550 within the outlet opening 526 and couple with the inlet retainer 542 .
- the inlet retainer 542 includes a first or inlet coupler 554 including a pair of openings 556 configured to receive a pair of retaining tabs 552 supported by the holder 540 within the outlet opening 526 .
- a second or outlet coupler 558 of the inlet retainer 542 is configured to couple with a coupler 560 of the outlet housing 546 .
- the second coupler 558 illustratively comprises external threads 562 supported by a cylindrical sidewall 564 defining a fluid passageway 566 ( FIG. 27 ).
- the coupler 560 of the outlet housing 546 illustratively comprises internal threads 568 supported by a cylindrical sidewall 570 of the outlet housing 546 .
- the sidewall 570 of the outlet housing 546 defines a receiving passageway or cavity 572 receiving the nozzle 544 defining a fluid passageway 574 in fluid communication with the fluid passageway 566 of the inlet retainer 542 .
- the external threads 562 of the inlet retainer 542 threadably engage with the internal threads 568 of the outlet housing 546 to retain the nozzle 544 within the passageway 572 .
- An inlet illustratively a plurality of inlet openings 576 are defined by the inlet coupler 554 of the inlet retainer 542 and are in fluid communication with the fluid passageway 566 .
- a rearwardly extending post 578 is configured to engage a valve, such as a flow restrictor 580 , to prevent axial movement thereof in response to water pressure ( FIG. 25 ).
- the flow restrictor 580 is configured to maintain consistent performance of the valve cartridge assembly 524 despite varying water pressure (e.g., 20 psi to 60 psi).
- a whirl member 582 is illustratively supported by the holder 540 and is in fluid communication with the inlet retainer 542 .
- the whirl member 582 includes a cylindrical sidewall 584 having a plurality of angled slots 586 .
- the angled slots 586 are generally tangential to an inner surface of the sidewall 584 for imparting a rotational movement to the water and thereby assisting in the formation of the continuous shield of water, as further detailed herein.
- the nozzle 544 includes a cylindrical sidewall 588 extending between an inlet end 590 and an outlet end 592 .
- the sidewall 588 includes an inner surface 594 and an outer surface 596 .
- An end tip 598 is defined at the outlet end 592 and includes a recessed portion 600 configured to receive the o-ring 548 .
- the o-ring 548 is received between the outer surface 596 of the nozzle 544 and an inner surface 602 of the outlet housing 546 , thereby preventing water from leaking and disrupting a laminar stream 63 at the outlet end 592 .
- the fluid passageway 574 is defined by the inner surface 594 of the sidewall 588 and extends from the inlet end 590 to the outlet end 592 .
- the inner surface 594 illustratively includes a stair-step geometry such that the passageway 574 tapers inwardly as it extends from the inlet end 590 toward the outlet end 592 , thereby promoting laminar water flow. More particularly, the inner surface 594 includes a plurality of stepped portions 604 a, 604 b, 604 c, 604 d of decreasing inner diameters ( FIG. 27 ).
- the end tip 598 of the outlet end 592 of the nozzle 544 includes an end wall 606 including sharp edges or corners 608 to define a first outlet 610 .
- the first outlet 610 is configured to produce a central water stream 63 . While a single first outlet 610 is illustrated, it should be appreciated that a plurality of first outlets 610 may be provided to produce a plurality of separate central water streams 63 .
- Each water stream 63 includes a velocity circle, wherein multiple water streams 63 should be separated to prevent colliding of the velocity circles of the water streams 63 and potential splashing.
- a plurality of ribs 612 are supported at the inlet end 590 of the nozzle 544 and are configured to facilitate a press fit or friction fit with the inner surface 602 of the outlet housing 546 .
- the cylindrical sidewall 570 of the outlet housing 546 illustratively extends from an inlet end 616 to an outlet end 618 .
- An end wall 620 is formed at the outlet end 618 wherein the end tip 598 of the nozzle 544 is configured to engage or abut the end wall 620 .
- the first outlet 610 is recessed axially toward the inlet end 616 of the outlet housing 546 , thereby protecting the corners 608 of the nozzle end tip 598 from damage (for example, by dropping the spray head 510 into the sink or by aggressive cleaning).
- the illustrative outlet housing 546 includes an annular flange 622 supported by the sidewall 570 by a connecting wall 624 , thereby defining an annular groove 625 .
- the annular groove 625 concentrically receives the sidewall 584 of the whirl member 582 to define a serpentine flow path 626 as water flows out of the slots 586 and downstream to a second outlet 628 .
- the outlet opening 526 of the holder 540 includes a radially inwardly facing fluid contact surface 630 defining the second outlet 628 , which surrounds the first outlet 610 .
- the fluid contact surface 630 is flared radially outwardly as it extends axially downstream (i.e., in a direction from the inlet end 616 toward the outlet end 618 ).
- This serpentine path is configured to decrease turbulence in the water moving toward the second outlet 628 and provide a substantially laminar water flow to the fluid contact surface 630 .
- Water from the whirl member 582 is configured to be directed toward the fluid contact surface 630 due to centrifugal force, and produce from the second outlet 628 a continuous shield of water 84 extending outwardly from the spray head 510 in a sheet-like layer around the central water stream 63 discharged from the first outlet 610 of the nozzle 544 and spaced apart therefrom ( FIG. 30 ).
- a plurality of spaced apart central water streams 63 may be generated by a plurality of first outlets 610 and surrounded by the continuous shield of water 84 generated by the second outlet 628 .
- the flow restrictor 580 is configured to maintain consistent performance of the valve cartridge assembly 524 with varying water pressure. More particularly, the flow restrictor 580 allows the central water stream from the first outlet 610 and the continuous water shield from the second outlet 628 to remain relatively the same through the duration of different water pressures (e.g., 20 psi to 60 psi). In other words, the force of the central water stream 63 and the size of the continuous water shield 84 do not significantly change through the range of water pressures.
- the nozzle 544 is positioned inside the outlet housing 546 to protect the sharp edges 608 of the end tip 598 from being damaged. If the edges 608 of the nozzle 544 are damaged, the central water stream 63 discharged from the first outlet 610 may not be laminar.
- the arrangement of the nozzle 544 and outlet housing 546 also facilitates manufacturing independently from the rest of the valve cartridge assembly 524 (moldability, material selection, accuracy of edges, etc.), and facilitates replacement through a threaded connection between the inlet retainer 542 and the outlet housing 546 .
- the stair-step geometry inside the nozzle 544 facilitates stream straightening to provide for laminar flow of the stream 63 discharged out of the first outlet(s) 610 of the nozzle 544 .
- FIG. 31 is a cross-sectional view of a further illustrative cartridge assembly 224 ′ for generating a continuous water shield 84 ′′ around center water 63 .
- Cartridge assembly 224 ′ is illustratively substantially similar to cartridge assembly 224 as detailed above in connection with FIGS. 14-16 . More particularly, cartridge assembly 224 ′ includes nozzle 230 having center first outlet 232 and annular second outlet 234 disposed concentrically around the first outlet 232 and defined by an outer wall 634 of holder 540 ′. Conical member 236 is supported concentrically around the center first outlet 232 and provides Coanda effect surface 238 . Water passing through the center first outlet 232 generates water stream 63 which is illustrated as being centrally located.
- FIG. 32 is a cross-sectional view of a further illustrative cartridge assembly 224 ′′ for generating a continuous water shield 84 ′′ around the center water stream 63 .
- Cartridge assembly 224 ′′ includes nozzle 244 ′ including first outlet 610 and annular second outlet 526 ′ disposed concentrically around the first outlet 610 and defined by outer wall 634 of holder 540 ′.
- the nozzle 244 ′ is illustratively received within outlet housing 546 ′.
- a deflector 636 includes an outwardly flared portion 638 that illustratively defines a Coanda effect surface 640 .
- the deflector 636 is defined by an intermediate wall positioned between the nozzle 244 ′ and the outer wall 634 .
- the deflector 636 including flared portion 638 , may be formed integral with the outlet housing 546 ′.
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Abstract
Description
- The present application is a continuation-in-part of U.S. patent application Ser. No. 12/965,207, filed Dec. 10, 2010, which is a continuation of U.S. patent application Ser. No. 11/383,267, filed May 15, 2006, now U.S. Pat. No. 7,850,098, which claims the benefit of U.S. Provisional Application Ser. No. 60/680,939, filed May 13, 2005 and U.S. Provisional Application Ser. No. 60/771,192, filed Feb. 6, 2006, the disclosures of which are expressly incorporated by reference herein.
- The present invention relates to a water delivery device and, more particularly, to a water delivery device for use with a sink and configured to generate a continuous sheet-like water shield around a stream of water.
- According to illustrative embodiment of the present disclosure, a spray head includes a body, and a cartridge assembly received within the body. The cartridge assembly includes an inlet, a first outlet in fluid communication with the inlet and configured to produce a water stream, and a second outlet in fluid communication with the inlet and configured to produce a continuous shield of water extending outwardly in a sheet-like layer around the water stream, the water stream having a substantially laminar flow.
- According to a further illustrative embodiment of the present disclosure, a spray head includes a body having a fluid port, and a mount removably received within the body. The spray head further includes a flow straightening member operably coupled to the mount and in fluid communication with the fluid port. The flow straightening member is configured to assist in removing turbulence from the water. A nozzle is operably coupled to the straightening member and includes an outlet orifice configured to produce a center water stream. A whirl member is operably coupled to the mount and is configured to impart rotational movement to the water, thereby producing a continuous shield of water extending around the center water stream.
- According to yet another illustrative embodiment of the present disclosure, a method of generating a water pattern includes the steps of producing a center water stream having a substantially laminar flow from a first outlet, and producing an outer continuous shield of water extending outwardly in a sheet-like layer around the center water stream.
- According to still a further illustrative embodiment of the present disclosure, a method of generating a water pattern with a water delivery device includes the steps of dividing a supply of water provided to the water delivery device into at least a first portion and a second portion and supplying from the water delivery device a stream of water based on the first portion and a continuous shield of water based on the second portion. The stream of water has a substantially laminar flow and the continuous shield of water surrounds the stream of water.
- According to still another illustrative embodiment of the present disclosure, a water deliver system for connection to at least one source of water and for mounting to a sink deck is provided. The water delivery system comprises at least one valve adapted to be in communication with the at least one source of water and an output device coupled to the sink deck. The output device includes an internal waterway and a spray head. The internal waterway is in fluid communication with the valve and with the spray head. The spray head includes a first outlet producing a stream of water and a second outlet producing a continuous shield of water surrounding the stream of water.
- Additional features and advantages of the present invention will become apparent to those skilled in the art upon consideration of the following detailed description of the illustrative embodiment exemplifying the best mode of carrying out the invention as presently perceived.
-
FIG. 1 is a front perspective view of an illustrative embodiment spray head of the present disclosure; -
FIG. 2 is a rear perspective view of the spray head ofFIG. 1 ; -
FIG. 3 is an exploded perspective view of the spray head ofFIG. 1 ; -
FIG. 4 is an exploded perspective view of the cartridge assembly and outlet member of the spray head ofFIG. 1 ; -
FIG. 5 is a cross-sectional view taken along line 5-5 ofFIG. 1 ; -
FIG. 6 is a top plan view of the whirl member of the cartridge assembly ofFIG. 4 ; -
FIG. 7 is a cross-sectional view of the spray head ofFIG. 1 ; -
FIG. 8 is a detailed cross-sectional view of the cartridge assembly ofFIG. 4 ; -
FIG. 9 is an end perspective view of the spray head ofFIG. 1 , with a partial cut-away thereof; -
FIG. 10 is an exploded perspective view of a further illustrative embodiment cartridge assembly of the present disclosure; -
FIG. 11 is a cross-sectional view of the cartridge assembly ofFIG. 10 ; -
FIG. 12 is a perspective view with a cut-away thereof of the cartridge assembly ofFIG. 10 ; -
FIG. 13A is a cross-sectional view of an illustrative flow straightener; -
FIG. 13B is a perspective view with a cutaway thereof of the flow straightener ofFIG. 13A ; -
FIG. 14 is a perspective view of a further illustrative embodiment cartridge assembly; -
FIG. 15 is a cross-sectional view of the cartridge assembly ofFIG. 14 ; -
FIG. 16 is an exploded perspective view of the cartridge assembly ofFIG. 14 ; -
FIG. 17 is a representative view of a further embodiment nozzle; -
FIG. 18 is a side, schematic view showing an illustrative velocity circle formed by a substantially laminar stream; -
FIG. 19 is a top, schematic view showing an illustrative velocity circle formed by a substantially laminar stream; -
FIG. 20 is an exploded perspective view of a further embodiment cartridge assembly; -
FIG. 21 is a cross-sectional view of the cartridge assembly ofFIG. 20 ; -
FIG. 22 is a perspective view of an inlet member of the cartridge assembly ofFIG. 20 ; -
FIG. 23 is a diagrammatic view of an exemplary water delivery system; -
FIG. 24 is a perspective view of an illustrative embodiment spray head including a further illustrative embodiment cartridge assembly; -
FIG. 25 is a cross-sectional view taken along line 25-25 ofFIG. 24 ; -
FIG. 26 is a partially exploded perspective view, with a partial cut-away, of the spray head ofFIG. 24 ; -
FIG. 27 is a detailed cross-sectional view ofFIG. 25 ; -
FIG. 28 is an exploded perspective view of the cartridge assembly ofFIG. 24 , with the holder shown in partial cross-section; -
FIG. 29 is a cross-sectional view taken along line 29-29 ofFIG. 24 ; -
FIG. 30 is a cross-sectional view taken along line 30-30 ofFIG. 24 ; -
FIG. 31 is a cross-sectional view of a further illustrative embodiment cartridge assembly; and -
FIG. 32 is a cross-sectional view of a further illustrative embodiment cartridge assembly. - Referring initially to
FIGS. 1-3 , aspray head 10 according to an illustrative embodiment of the present invention is shown as including avalve body 12 including aninlet fluid port 14 having a plurality ofexternal threads 16 for coupling with a conventional water supply line (not shown). Avalve body 12 includes first andsecond bores inlet fluid port 14 to anoutlet member 22. More particularly, the valve control members are configured to direct water from theinlet fluid port 14 to different fluid passageways formed within thevalve body 12, which are in fluid communication with acartridge assembly 24 received within afirst opening 26 of theoutlet member 22, and aerator nozzle (not shown) received within asecond opening 28 of theoutlet plate 22, and a plurality of circumferentially disposedopenings 30 positioned around the first andsecond openings - Referring now to
FIGS. 3 and 4 , thecartridge assembly 24 includes aholder 32, awhirl member 34, aback reflector 36, aflow straightener 38 and aflow nozzle 40. Theholder 32 includes an inner first end having a plurality ofexternal threads 42 to be received within theopening 26 of thevalve body 12 and to threadably engage a plurality ofinternal threads 44 formed therein (FIG. 8 ). An outer end of theholder 32 includes a plurality ofinternal threads 46 which threadably engage a plurality ofexternal threads 48 formed on a inner end of the flow straightener 38 (FIG. 8 ). - As shown in
FIG. 8 , thewhirl member 34 and backreflector 36 are captured intermediate theflow straightener 38 andholder 32. Referring toFIG. 5 , theflow straightener 38 includes a plurality of parallel, longitudinally aligned bores 50 configured to receive fluid from aninlet 52. Thebores 50 are configured to assist in removing turbulence from water flowing therethrough, and provide a more linear flow to the water.Flow nozzle 40 includes an inner end having a plurality ofinternal threads 54 which threadably engage a plurality ofinternal threads 56 formed within the outer end of theflow straightener 38.Flow nozzle 40 includes a cylindricalouter wall 58 and a substantiallyplanar end wall 60. Anoutlet orifice 62 is formed within theend wall 60 such that water passing therethrough forms a center water stream 63 (FIG. 7 ). Theorifice 62 includes sharp entry corners 64 (seeFIG. 9 ) to assist in providing a substantially laminar flow. Additionally, the diameter of theorifice 62 is illustratively at least as great as the thickness of the adjacentplanar end wall 60 to further assist in providing a substantially laminar flow to the center water stream. A counter bore 66 is formed in the outer surface of theend wall 60 and a diametricallydisposed slot 68 is likewise formed in the outer surface. Theslot 68 is configured to receive a tool such as a screw driver to assist in inserting and securing thecartridge assembly 24 within thevalve body 12. The counter bore 66 provides a recess to prevent potential damaging contact between the tool and theoutlet orifice 62. - A plurality of
passageways 70 are formed within theholder 32 and are in fluid communication with thewhirl member 34. As shown inFIGS. 5 and 6 , thewhirl member 34 includes anannular body 72 defining acentral opening 74 and a plurality of outwardly extendingslots 76 which are configured to impart rotational movement to water passing through theannular passageways 70, through theopening 74 intermediate thebody 72 and theflow straightener 38, and out through theslot 76. Once the rotational movement is imparted to the water, it passes outwardly due to centrifugal force and contacts an outercylindrical wall 78 of theback reflector 36. Anend wall 79 of theback reflector 36 directs water in a rearward direction through a secondannular passageway 80. Anend wall 81 formed by the holder and the valve body then redirects the water back in a forward direction and toward asecond outlet 82. In other words, the rotating water supplied from thewhirl member 34 enters a serpentine passageway that reverses its direction twice as it travels toward thesecond outlet 82. This redirection of the water in rearward and forward directions assists in making the layer of water substantially uniform. As the water exits thesecond outlet 82, centrifugal force causes it to define a substantially continuous shield ofwater 84 having a sheet-like appearance (FIG. 7 ). In order to reduce turbulence and assist in providing a continuous sheet of water within theshield 84, the surfaces contacted by the rotating water should be substantially smooth. Theshield 84 will typically have a conical or bulb-like shape. - Turning now to
FIGS. 10-12 , a further illustrative embodiment of thevalve cartridge assembly 124 of the present invention is illustrated. Thevalve cartridge assembly 124 includes a base 126 which threadably receives ashroud 128. Similarly, ashroud shaper 130 threadably receives theshroud 128. Anozzle mount 132 is operably coupled to the base 126 through a conventional fastener, such as ascrew 134. Aflow straightener 136 is concentrically received within thenozzle mount 132. Theflow straightener 136 is secured in position by means of anozzle body 138 which is threadably received within an outer end of thenozzle mount 132. Anozzle 140 is threadably received within an outer end of thenozzle body 138. - The
nozzle mount 132 and theflow straightener 136 cooperate to assist in removing turbulence from water flowing therethrough. More particularly, theflow straightener 136 includes a plurality of parallel bores 142 (seeFIG. 11 ) configured to cause a substantially linear flow of water therethrough. Thenozzle 140 is of a design similar tonozzle 40 detailed herein. - Referring to
FIGS. 13A and 13B , an alternativeembodiment flow straightener 136′ includes an inwardly facingconical surface 143 a and an outwardly facingconical surface 143 b. Theflow straightener 136′ may be substituted forflow straightener 136 to facilitate the removal of turbulence from water passing therethrough. - A
whirl member 144 is retained within thebase 126 by thenozzle mount 132. Thewhirl member 144 may be of a design similar towhirl member 34 as detailed herein. As note above, thewhirl member 144 is configured to impart rotational movement to water passing therethrough, wherein the water then extends into anannular passageway 146 and into theshroud shaper 130. Because the water adheres to the inner surface of the outer wall of theshroud shaper 130 it generates a conical or bulb-like continuous shield of water as it exits throughoutlet 150. As detailed above, theoutlet orifice 62 of thenozzle 140 generates a center stream of water disposed within the shield of water. -
FIGS. 14-16 show another illustrativeembodiment cartridge assembly 224 of the present invention.Cartridge assembly 224 includes a base 226 having aninlet 228.Inlet 228 is illustrated as a separate component coupled tobase 226. However,inlet 228 may be integrally formed as apart ofbase 226. Anozzle 230 is threadably received within thebase 226 and includes a centerfirst outlet 232 and an annularsecond outlet 234 disposed concentrically around thefirst outlet 232. Aconical member 236 is supported concentrically around the center first outlet and provides aCoanda effect surface 238. More particularly, water passing through theinlet 228 to the centerfirst outlet 232 generates a water stream which is illustrated as centrally located. Water passing throughpassageways 233 innozzle 230 and onto the annularsecond outlet 234 contacts theCoanda effect surface 238 of theconical member 236. A Coanda effect results in adhesion of the water to thesurface 238 by surface tension, such that the water passing beyond theconical member 236 produces a substantially continuous shield of water in a sheet-like manner around the center water stream. -
FIG. 17 illustrates an alternative embodiment for producing a substantially laminar flow through theoutlet orifice 62 of anozzle 40′. In this embodiment, instead of a substantiallyplanar end wall 60, theend wall 60′ includes a conical surface directing water to theoutlet orifice 62. - It should be appreciated that the substantially laminar flow of the
center stream 63 reduces splashing or misting in response to water contacting asurface 280. Additionally, thewater shield 84 protects against splash, mist and dislodged debris when using a power spray to clean surfaces, such as dishes, sink, etc. It is also possible to replace the continuous water shield with an aerated shield. - As discussed herein, the various illustrated embodiments provide a central flow of water having a generally laminar stream, such as
stream 63 inFIG. 7 , and a continuous shield of water, such as shield 83 inFIG. 7 , surrounding the central flow of water. The continuous shield of water may also surround a flow of water, central or offset, having a substantially non-laminar stream. - Referring to
FIGS. 18 and 19 , substantiallylaminar stream 63 is surrounded byshield 84, which essentially acts as a splash barrier. As substantiallylaminar stream 63 impacts surface 280 (such as a surface of a dish), fluid followssurface 280 in a direction radially outwardly from the center axis ofstream 63. More particularly, the substantially laminar characteristics ofstream 63 and the Coanda effect causes the fluid to generate avelocity zone 282, substantially circular, which extends outwardly to mix with fluid fromshield 84 impactingsurface 280. When substantiallylaminar stream 63 contacts surface 280, it creates a substantially circular zone 282 (illustratively about 1 inch in diameter) that is of a high pressure and flows parallel tosurface 280. Water flow withinzone 282 thus tends to strip particles fromsurface 280 to facilitate cleaning, similar to a mechanical scraping. Further, fluid fromstream 63 and fromshield 84 combine to form a turbulent flow which also facilitates cleaning ofsurface 280. - Referring to
FIGS. 20-22 a furtherembodiment cartridge assembly 316 is shown.Cartridge assembly 316 may be received invalve body 12 and includes aholder 318, aninlet member 320, aflow straightener 322, and anoutlet member 324. As explained hereinoutlet member 324 provides a substantially laminar flow of water.Surface 304 ofholder 318 cooperate withvalve body 12 to couplecartridge assembly 316 tovalve body 12. In one embodiment, a coupler, such as a fastener, is received in opening 308 tocouple holder 318 tovalve body 12. In one embodiment,surface 304 is threaded and is threadably engaged withvalve body 12 to permit removal ofvalve cartridge 316 fromvalve body 12. A seal (not shown) is carried in arecess 302 of holder to provide a fluid tight seal betweenvalve body 12 and a periphery ofholder 318. -
Holder 318 includes aninlet 306 which is in fluid communication with the internal fluid passageways ofvalve body 12.Illustratively inlet 306 includes threeelongated orifices 310A-C. Inlet 306 may have fewer or more orifices. Referring toFIG. 21 ,orifices 310A-C (310A illustrated) are generally aligned withpassageways 330A-C formed by the cooperation ofinlet member 320 and flowstraightener 322.Orifices 310A-C are in fluid communication with aregion 312 inholder 318 betweenholder 318 andinlet member 320. -
Inlet member 320 is coupled toholder 318. In oneembodiment surface 332 ofinlet member 320 andsurface 334 ofholder 318 are each threaded. In one embodiment, surfaces 332 and 334 are sized such thatholder 318 andinlet member 320 may be sonically welded together. Anangled surface 336 ofinlet member 320 and anangled surface 338 ofholder 318 cooperate to assist in sealing the periphery ofinlet member 320 relative toholder 318. - Surfaces 348 (illustratively three surfaces) of
flow straightener 322 and surfaces 348 (illustratively three surfaces) ofinlet member 320 are sized such thatflow straightener 322 may be sonically welded toinlet member 320. In one embodiment,flow straightener 322 is coupled toinlet member 320 by other suitable means, such as threads. - Referring to
FIG. 22 ,inlet member 320 includes a plurality ofslot 340 are in fluid communication with passageways 330 and which impart a rotational movement to the water to assist in the formation of the continuous shield of water, as explained below. The central portion ofinlet member 320 receives abody portion 321 offlow straightener 322. Alower portion 342 ofinlet member 320 which containsslots 340 is received within anopening 344 offlow straightener 322 betweenbody portion 321 and adeflector portion 374 offlow straightener 322. -
Outlet member 324 includes arecess 350 which is in fluid communication withfluid passages 352 inflow straightener 322.Recess 350 terminates in anoutlet orifice 354.Outlet member 324 includes a raisedportion 356 which cooperates with asurface 358 offlow straightener 322 to permitoutlet member 324 to be sonically welded to flowstraightener 322. In one embodiment,flow straightener 322 is coupled tooutlet member 324 by other suitable means, such as threads. - In operation, water enters
valve cartridge 316 throughorifices 310A-C. As explained herein, a first portion of the water enteringvalve cartridge 316 exits as a stream of water, similar tostream 63, and a second portion of the water enteringvalve cartridge 316 exits as a continuous shield of water, similar toshield 84. -
Body portion 321 offlow straightener 322 includes a plurality ofpassageways 352.Illustratively passageways 352 are a plurality of parallel, longitudinally aligned bores (see 352A inFIG. 21 ) which are configured to assist in removing turbulence from fluid flowing there through, and provide a more linear flow to the fluid. Water passing throughpassageways 352 is communicated to aninternal waterway 360 inflow straightener 322 and ontorecess 350 inoutlet member 324.Recess 350 includes a cylindricalouter wall 362 and a tapered or conicalinner wall 364. Conicalinner wall 364 abuts a substantiallyplanar end wall 366 definingoutlet orifice 354, such that water passing there through forms a center water stream similar tostream 63.Orifice 354 includessharp entry corners 368 to assist in providing a substantially laminar flow to the outlet stream. In one embodiment, the outlet stream has a substantially laminar flow. - A continuous shield of water is formed by water that enters
passageways 330A-C formed byinlet member 320 and flowstraightener 322.Passageways 330A-C are in fluid communication withslots 340 positioned at a lower end ofinlet member 320.Slots 340 and alower surface 370 offlow straightener 322 change the direction of flow of the water and impart rotational movement to the water passing there through. Once the rotational movement is imparted to the water, it moves outwardly to aside wall 372 ofdeflector member 374 offlow straightener 322 and is directed backwards indirection 376. The water continues generally indirection 376 until it is redirected forward again indirection 378 bysurface 380 ofinlet member 320. The water travels generally indirection 378 toward ashield outlet 382. - As the fluid moves toward
shield outlet 382, centrifugal force causes it to follow aninner surface 384 ofholder 318. Due to the well-known Coanda effect, where fluid flowing along a solid surface which is curved slightly from the stream tends to follow the surface, the fluid defines a substantially continuous shield of fluid, generally similar to shield 84 having a sheet-like appearance. As shown inFIG. 21 ,inner surface 384 illustratively includes a flared or angled portion extending towardshield outlet 382. In order to reduce turbulence and to assist in providing a continuous sheet of water within the shield,inner surface 384 contacted by the rotating fluid should be substantially smooth. - The flared portion of
surface 384 assists in shaping the appearance of the continuous sheet of water. The flared portion causes the appearance of the continuous sheet of water to be more conical and less spherical. - Additional details regarding
cartridge assembly 316 are provided in U.S. Provisional Patent Application Ser. No. 60/771,192, filed Feb. 6, 2006, the disclosure of which has been expressly incorporated by reference herein. - As illustrated in
FIG. 23 , the spray heads and valve cartridges discussed herein may be used as apart of awater delivery system 400 for use with asink 402 having adrain 401 or other device, residential or commercial, associated with a drain.Sink 402 is shown being coupled to acountertop 404. Thecountertop 404 and a top portion of thesink 402 are collectively referred to as the sink deck.Water delivery system 400 is coupled to a source ofhot water 406 and a source ofcold water 408. Water from the source ofhot water 406 and source ofcold water 408 are provided to one ormore valves 410 which may be adjusted to regulate the flow of water there through. - In one embodiment, the source of
hot water 406 and the source ofcold water 408 are both in fluid communication with a single mixing valve which regulates the flow rate of water from eachsource output device 412, if any depending on the water characteristics desired. For instance, only hot water may be desired so the valve would only pass water from the source ofhot water 406. In another embodiment, the source ofhot water 406 and the source ofcold water 408 are each in fluid communication with a respective valve; each valve regulating the flow of water to be provided to theoutput device 412 from the respective source of water in fluid communication with the valve.Valve 410 may be positioned above the sink deck or below the sink deck. - The control of
valve 410 is through one ormore input devices 414.Exemplary input devices 414 include both mechanical input devices, such as handles, and electronic input devices, such as a touch sensor or an infrared sensor, which provide an indication to a controller of the water characteristics desired. In one example, the controller adjustsvalve 410 through a motor coupled to valve. -
Exemplary output devices 412 include a spout having a spray head coupled thereto. The spout may be rigid or may have a flexible portion. In one embodiment, spray head is a swivel head attached to the end of a spout base member. In one embodiment, spray head is a pull out wand which is attached to a spout base member. The pull out wand having a first position generally coupled to spout base member and a second position wherein the wand is spaced apart from the spout base member and connected thereto through a waterway connecting the two. Another exemplary output device is a side spray. Exemplary side sprays are disclosed in U.S. Provisional Application Ser. No. 60/771,192, filed Feb. 6, 2006, the disclosure of which is expressly incorporated by reference herein. In one embodiment, spray head is incorporated into a side spray which may be coupled to the sink deck and is in fluid communication withvalve 410. In one example side spray is in fluid communication withvalve 410 independent of a spout. In one embodiment, spray head may be used with any type of water delivery device which is coupled to a sink deck and used in combination with asink 402. - In one embodiment,
water delivery system 400 is associated with a bathtub, a shower, or other receptacle having an associated drain, such asdrain 401 associated withsink 402 inFIG. 23 . As such, the spray heads and/or valve cartridges disclosed herein may be used to provide a continuous shield surrounding a stream of water as part of a tub filler, a showerhead, and/or a body spray. - In one example, using the continuous shield and stream combination may reduce the amount of steam produced in a shower setting. In effect, a portion of air may be trapped between the stream and the continuous shield. As such, steam generated from the stream is generally trapped inside the shield thereby limiting the humidity in the bathroom.
- In one embodiment, the spray heads and/or valve cartridges disclosed herein may be configured to include multiple streams of water surrounded by the continuous stream. Each stream may have a substantially laminar flow or a non-laminar flow. In one embodiment, the spray heads and/or valve cartridges disclosed herein may be configured to include multiple continuous shields of water. In one embodiment, the spray heads and/or valve cartridges disclosed herein may be configured to include one or more streams of the water, each stream having one of a substantially laminar flow or a non-laminar flow, and one or more continuous shields of water surrounding the one or more streams of water.
- In one embodiment, the inlet to the water passage to generate the stream of water and the inlet to the water passage to generate the shield of water are independent of each other, such that water may be presented to only the water passage to generate the stream of water, to only the water passage to generate the shield of water, or to both the water passage to generate the shield of water and the water passage to generate the stream of water. The
water delivery system 400 may include separate water conduits fromvalve 410 connecting to the water passage to generate the stream of water and the water passage to generate the shield of water. As such, a user may select withinput device 414 to generate a stream of water only, to generate a shield of water only, or to generate a combination of a stream of water and a continuous shield of water. In one example, the water shield only mode may be used for a rinsing application. - In one embodiment, the continuous shield of water has a generally football shaped appearance. In one embodiment, the shape of the continuous shield of water is influenced by the pressure of the water. At standard pressures for residential applications, the shape of the continuous shield is generally a half of a football or generally conical. At lower pressures the shape of the continuous shield is generally football shaped. As such, the pressure related to the water in the continuous shield may be chosen to select an aesthetically pleasing appearance. In one example, the pressure is chosen such that the appearance of the water shield provides a bubble around a stream of water. The shape of the continuous shield may also be influenced by the temperature of the water.
- With reference now to
FIGS. 24-27 , an illustrativeembodiment spray head 510 is shown as including a further illustrativespray cartridge assembly 524. In the following description, many components are similar to those identified above in connection with other illustrative embodiment spray heads. As such, similar components will be identified with like reference numbers. - Illustratively, the
spray head 510 includes avalve body 512 supporting afluid inlet port 514 for coupling to a conventional water supply line (not shown). Thevalve body 512 may be received within anouter shell 516 and may also support auser interface 518 to control water flow through thewater inlet port 514 to a plurality of differentwater outlet openings user interface 518 may include apush button 532 configured to cause water to flow from theinlet port 514 through thevalve cartridge assembly 524 received within theoutlet opening 526, in a manner further detailed herein. Theillustrative user interface 518 may further include atoggle switch 534 configured to cause water to flow from theinlet port 514 alternatively betweenspray nozzles 536 received within theoutlet openings 528, and aconventional aerator 538 received within theoutlet opening 530. - With reference now to
FIGS. 25-28 , illustrativevalve cartridge assembly 524 is supported by thebody 512 and includes aholder 540, an inlet member orretainer 542, a flow straightener ornozzle 544, an outlet member orhousing 546 and an o-ring 548. Thenozzle 544 is received within theoutlet housing 546 and retained therein by theinlet retainer 542. More particularly, theoutlet housing 546 couples with theinlet retainer 542 which, in turn, couples with theholder 540. - As shown in
FIGS. 27 and 28 , theholder 540 illustratively includes abody 550 definingoutlet openings valve cartridge assembly 524,spray nozzles 536 andaerator 538, respectively. Retainingtabs 552 are illustratively supported by thebody 550 within theoutlet opening 526 and couple with theinlet retainer 542. More particularly, theinlet retainer 542 includes a first orinlet coupler 554 including a pair ofopenings 556 configured to receive a pair of retainingtabs 552 supported by theholder 540 within theoutlet opening 526. A second oroutlet coupler 558 of theinlet retainer 542 is configured to couple with acoupler 560 of theoutlet housing 546. Thesecond coupler 558 illustratively comprisesexternal threads 562 supported by acylindrical sidewall 564 defining a fluid passageway 566 (FIG. 27 ). Thecoupler 560 of theoutlet housing 546 illustratively comprisesinternal threads 568 supported by acylindrical sidewall 570 of theoutlet housing 546. - The
sidewall 570 of theoutlet housing 546 defines a receiving passageway orcavity 572 receiving thenozzle 544 defining afluid passageway 574 in fluid communication with thefluid passageway 566 of theinlet retainer 542. Theexternal threads 562 of theinlet retainer 542 threadably engage with theinternal threads 568 of theoutlet housing 546 to retain thenozzle 544 within thepassageway 572. - An inlet, illustratively a plurality of
inlet openings 576 are defined by theinlet coupler 554 of theinlet retainer 542 and are in fluid communication with thefluid passageway 566. A rearwardly extendingpost 578 is configured to engage a valve, such as aflow restrictor 580, to prevent axial movement thereof in response to water pressure (FIG. 25 ). As further detailed herein, theflow restrictor 580 is configured to maintain consistent performance of thevalve cartridge assembly 524 despite varying water pressure (e.g., 20 psi to 60 psi). - With reference to
FIGS. 26-30 , awhirl member 582 is illustratively supported by theholder 540 and is in fluid communication with theinlet retainer 542. Thewhirl member 582 includes acylindrical sidewall 584 having a plurality ofangled slots 586. As shown inFIG. 29 , theangled slots 586 are generally tangential to an inner surface of thesidewall 584 for imparting a rotational movement to the water and thereby assisting in the formation of the continuous shield of water, as further detailed herein. - With reference to
FIGS. 27, 28 and 30 , thenozzle 544 includes acylindrical sidewall 588 extending between aninlet end 590 and anoutlet end 592. Thesidewall 588 includes aninner surface 594 and an outer surface 596. Anend tip 598 is defined at theoutlet end 592 and includes a recessedportion 600 configured to receive the o-ring 548. The o-ring 548 is received between the outer surface 596 of thenozzle 544 and aninner surface 602 of theoutlet housing 546, thereby preventing water from leaking and disrupting alaminar stream 63 at theoutlet end 592. Thefluid passageway 574 is defined by theinner surface 594 of thesidewall 588 and extends from theinlet end 590 to theoutlet end 592. Theinner surface 594 illustratively includes a stair-step geometry such that thepassageway 574 tapers inwardly as it extends from theinlet end 590 toward theoutlet end 592, thereby promoting laminar water flow. More particularly, theinner surface 594 includes a plurality of steppedportions FIG. 27 ). - With reference to
FIGS. 26, 27 and 30 , theend tip 598 of theoutlet end 592 of thenozzle 544 includes anend wall 606 including sharp edges orcorners 608 to define afirst outlet 610. Thefirst outlet 610 is configured to produce acentral water stream 63. While a singlefirst outlet 610 is illustrated, it should be appreciated that a plurality offirst outlets 610 may be provided to produce a plurality of separate central water streams 63. Eachwater stream 63 includes a velocity circle, whereinmultiple water streams 63 should be separated to prevent colliding of the velocity circles of the water streams 63 and potential splashing. A plurality ofribs 612 are supported at theinlet end 590 of thenozzle 544 and are configured to facilitate a press fit or friction fit with theinner surface 602 of theoutlet housing 546. - As shown in
FIGS. 27, 28 and 30 , thecylindrical sidewall 570 of theoutlet housing 546 illustratively extends from aninlet end 616 to anoutlet end 618. Anend wall 620 is formed at theoutlet end 618 wherein theend tip 598 of thenozzle 544 is configured to engage or abut theend wall 620. Thefirst outlet 610 is recessed axially toward theinlet end 616 of theoutlet housing 546, thereby protecting thecorners 608 of thenozzle end tip 598 from damage (for example, by dropping thespray head 510 into the sink or by aggressive cleaning). - The
illustrative outlet housing 546 includes anannular flange 622 supported by thesidewall 570 by a connectingwall 624, thereby defining anannular groove 625. Theannular groove 625 concentrically receives thesidewall 584 of thewhirl member 582 to define aserpentine flow path 626 as water flows out of theslots 586 and downstream to asecond outlet 628. More particularly, the outlet opening 526 of theholder 540 includes a radially inwardly facingfluid contact surface 630 defining thesecond outlet 628, which surrounds thefirst outlet 610. Thefluid contact surface 630 is flared radially outwardly as it extends axially downstream (i.e., in a direction from theinlet end 616 toward the outlet end 618). - As further detailed herein, as the water (represented by
arrows 632 inFIG. 30 ) exits thewhirl member 582, it moves radially outwardly and axially toward theoutlet end 618, reverses course axially back toward theinlet end 616, and reverses course axially again toward theoutlet end 618. This serpentine path is configured to decrease turbulence in the water moving toward thesecond outlet 628 and provide a substantially laminar water flow to thefluid contact surface 630. Water from thewhirl member 582 is configured to be directed toward thefluid contact surface 630 due to centrifugal force, and produce from the second outlet 628 a continuous shield ofwater 84 extending outwardly from thespray head 510 in a sheet-like layer around thecentral water stream 63 discharged from thefirst outlet 610 of thenozzle 544 and spaced apart therefrom (FIG. 30 ). As noted above, a plurality of spaced apart central water streams 63 may be generated by a plurality offirst outlets 610 and surrounded by the continuous shield ofwater 84 generated by thesecond outlet 628. - As noted above, the
flow restrictor 580 is configured to maintain consistent performance of thevalve cartridge assembly 524 with varying water pressure. More particularly, theflow restrictor 580 allows the central water stream from thefirst outlet 610 and the continuous water shield from thesecond outlet 628 to remain relatively the same through the duration of different water pressures (e.g., 20 psi to 60 psi). In other words, the force of thecentral water stream 63 and the size of thecontinuous water shield 84 do not significantly change through the range of water pressures. - In this illustrative embodiment, the
nozzle 544 is positioned inside theoutlet housing 546 to protect thesharp edges 608 of theend tip 598 from being damaged. If theedges 608 of thenozzle 544 are damaged, thecentral water stream 63 discharged from thefirst outlet 610 may not be laminar. The arrangement of thenozzle 544 andoutlet housing 546 also facilitates manufacturing independently from the rest of the valve cartridge assembly 524 (moldability, material selection, accuracy of edges, etc.), and facilitates replacement through a threaded connection between theinlet retainer 542 and theoutlet housing 546. The stair-step geometry inside thenozzle 544 facilitates stream straightening to provide for laminar flow of thestream 63 discharged out of the first outlet(s) 610 of thenozzle 544. -
FIG. 31 is a cross-sectional view of a furtherillustrative cartridge assembly 224′ for generating acontinuous water shield 84″ aroundcenter water 63.Cartridge assembly 224′ is illustratively substantially similar tocartridge assembly 224 as detailed above in connection withFIGS. 14-16 . More particularly,cartridge assembly 224′ includesnozzle 230 having centerfirst outlet 232 and annularsecond outlet 234 disposed concentrically around thefirst outlet 232 and defined by anouter wall 634 ofholder 540′.Conical member 236 is supported concentrically around the centerfirst outlet 232 and providesCoanda effect surface 238. Water passing through the centerfirst outlet 232 generateswater stream 63 which is illustrated as being centrally located. Water passing into the annularsecond outlet 234 contacts theCoanda effect surface 238 of theconical member 236. A Coanda effect results in adhesion of the water to thesurface 238 by surface tension, such that the water passing beyond theconical member 236 produces a substantially continuous shield ofwater 84′ in a sheet-like manner around thecenter water stream 63. -
FIG. 32 is a cross-sectional view of a furtherillustrative cartridge assembly 224″ for generating acontinuous water shield 84″ around thecenter water stream 63.Cartridge assembly 224″ includesnozzle 244′ includingfirst outlet 610 and annularsecond outlet 526′ disposed concentrically around thefirst outlet 610 and defined byouter wall 634 ofholder 540′. Thenozzle 244′ is illustratively received withinoutlet housing 546′. Adeflector 636 includes an outwardly flaredportion 638 that illustratively defines aCoanda effect surface 640. Water passing beyond the flaredportion 638 produces a substantially continuous shield ofwater 84″ in a sheet-like manner around thecenter water stream 63. In the illustrated embodiment, thedeflector 636 is defined by an intermediate wall positioned between thenozzle 244′ and theouter wall 634. Alternatively, thedeflector 636, including flaredportion 638, may be formed integral with theoutlet housing 546′. - Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the spirit and scope of the invention as described and defined in the following claims.
Claims (21)
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CN201710257122.2A CN107303543B (en) | 2016-04-20 | 2017-04-19 | Spray head |
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US11267003B2 (en) | 2005-05-13 | 2022-03-08 | Delta Faucet Company | Power sprayer |
US11091359B2 (en) | 2018-06-21 | 2021-08-17 | The Procter & Gamble Company | Unitary dispensing nozzle for co-injection of two or more liquids and method of using same |
US11524883B2 (en) | 2018-06-21 | 2022-12-13 | The Procter & Gamble Company | Unitary dispensing nozzle for co-injection of two or more liquids and method of using same |
US11267684B2 (en) | 2018-06-22 | 2022-03-08 | The Procter & Gamble Company | Liquid filling system and method of using same |
US12006671B2 (en) | 2018-12-11 | 2024-06-11 | Fortune Brands Water Innovations LLC | Wand with boost and mode selections |
US11339560B2 (en) | 2019-11-27 | 2022-05-24 | TBK Products LLC | Systems and methods related to fluid splash containment |
US11806732B2 (en) | 2019-11-27 | 2023-11-07 | TBK Products LLC | Systems and methods related to fluid splash containment |
US11975348B2 (en) | 2019-12-16 | 2024-05-07 | The Procter & Gamble Company | Liquid dispensing system comprising an unitary dispensing nozzle |
Also Published As
Publication number | Publication date |
---|---|
CA2607864A1 (en) | 2006-11-23 |
WO2006124721A3 (en) | 2007-11-08 |
US9962718B2 (en) | 2018-05-08 |
CN101180132B (en) | 2010-11-24 |
WO2006124721A2 (en) | 2006-11-23 |
CN101180132A (en) | 2008-05-14 |
CA2607864C (en) | 2013-05-28 |
US20110079657A1 (en) | 2011-04-07 |
US7850098B2 (en) | 2010-12-14 |
US20060255167A1 (en) | 2006-11-16 |
US20200129996A1 (en) | 2020-04-30 |
US10618066B2 (en) | 2020-04-14 |
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